A different approach might work better: what these firms are practising is
fraud or misrepresentation and we get a lot of that over here. Passing it
off as something which it is not as any other consumer goods is illegal.
It's also illegal to use an agency sticker like that. Over here we
On Thu, Sep 24, 2009 at 03:17:26PM -0400 I heard the voice of
N2TK, and lo! it spake thus:
I have had good success with PC Power Cooling supplies. Have
replaced all of the cheaper PC supplies with theirs. Got rid of the
noise.
I second this. Also, even ignoring RFI completely, I only use
I lost a PC power supply, ordered a pair of replacements from Tiger
Direct. They were neither half-KW monsters nor their cheapest supply. It
had VDE/UL/FCC stickers, ALL of the agency certifications.
Suspecting a line surge had killed the original supply I decided to
stuff some MOV at the input
...@mailman.qth.net] On Behalf Of William Carver
Sent: Thursday, September 24, 2009 3:09 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] RFI noise
I lost a PC power supply, ordered a pair of replacements from Tiger
Direct. They were neither half-KW monsters nor their cheapest supply. It
had VDE/UL/FCC stickers
I have had good success with PC Power Cooling supplies. Have replaced
all
of the cheaper PC supplies with theirs. Got rid of the noise.
http://www.pcpower.com/index.html
N2TK, Tony
THIS kind of information is invaluable. I had a stash of common mode
chokes and line-certified capacitors so added
On Thu, 2009-09-24 at 13:08 -0600, William Carver wrote:
...
It had VDE/UL/FCC stickers, ALL of the agency certifications.
...
It seemed pretty clear the supplies had passed agency approvals with the
filter components in place, but once they had the sticker they stopped
putting those parts on
I installed a 350w PS from Antec in one of my computers and the noise
disappeared.
One other computer, I installed a Corcom 6EF1 RFI module at the AC input and
that cleared up the computer hash on 30m. This drove me nuts for about two
years as I was hearing this warbling hash going up and down
I've bought the parts for several high-end computers from Tiger Direct
and haven't any problem with power supplies (or much of anything else,
for that matter), but I always buy the power supplies made by Ultra (a
solid brand name) because I like their modular cable system. Ultra even
offers
At 02:08 PM 9/24/2009, William Carver wrote:
I lost a PC power su
filter parts missing from production power suppliesprobably after
agency certifications.
RSGB's magazine has been on this issue for many months with pictures etc
I believe that they had not much concern from their OFCOM
The power supplies sans the RFI filter were to repair a computer that's
now gone. I might be able to find the second supply that I never used,
but it's old business. Honestly there is so much of this coming over
that the FCC couldn't cope with it all even if it happened yesterday.
Cutting corners
Bill,
In the UK it is the case that many SMPSU's have, once CE certification has been
obtained
been manufactured in volume with the input filter parts omitted.
These are in the main imports from Tiawan and China.
These non-compliant PSU's have been brought to the attention of our regulator
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